1Coal Mine Monitoring and Control System Faced to Information AgeXu ShifanReview1-32Research in Implementation of Radio Signaling, Centralizing and Locking System by Using Leaky ChannelLi Yong, Zhu Jianming, Hu YuLab Research4-63Research in Planetary Mechanism Soft Start SystemZhou Manshan, Yu Yan, Zhang YuanLab Research6-84Current Status of Research in On-line Measuring and Control Technique for Product Quality in Coal SeparationYang Junli, Ye GuisengLab Research9-115Parameter Adjusting for Lead-lag Dynamic Feedforward CompensaterLab Research11-136A Rebuilt Electrical Control System for Import Hoist Based on Simadyn- D Control TechniqueFu Xiaoping, Yang Renbing, Jiang Jianguo, Wu Xiaojie, Dai PengTechnical Exchange14-167The Characteristics and Compressed Encoding of Graphic Imformation in Industrial TVTechnical Exchange17-208Design of Fire Automatic Alarm SystemTechnical Exchange21-229Probes in Performances of Mine Mobile Communication systemProblem Probe23-2510Probes in Propagation of Radio Wave in Mine RoadwaysLiu Xilu, Wang ShengzhongProblem Probe25-2611A New Type Intelligent Monitoring System for Mine VentilationLiu Binyun, Lu DaweiTechnical Progress26-2812Design of Current Polling Detection System in Coal Preparation PlantsTechnical Progress28-2913Probes of Wire Changing Technology in Floor Multi wire Friction Pulley WinderTechnical Progress30-3114Freezing Station Temperature and Pressure DetectionTechnical Progress32-3315New Type Protection Device for Inclined Shaft Runaway CarMa ZhiminTechnical Progress33-3416Multi-wave-length Extinction Detection Method for Coal Mine DustTang GangTechnical Progress35-3617Application and Development of Explosion-proof Track Adhesion Locomotive in Coal MinesAuxiliary Haulage Modernization37-4018Development and Innovation of Model TJT Liftable and Movable SupportsAuxiliary Haulage Modernization40-4219The Use of Model CK-66 Dieseal Rubber-Tyred Locomotive in Bulianta Coal Mine and Some SuggestionsAuxiliary Haulage Modernization42-43 